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    Image processing apparatus and control method therefor
    66.
    发明授权
    Image processing apparatus and control method therefor 有权

    公开(公告)号：US11983901B2

    公开(公告)日：2024-05-14

    申请号：US17882484

    申请日：2022-08-05

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Naoya Takesue

    IPC: G06T7/90 ,  B41J2/21 ,  G01J3/40 ,  H04N1/60 ,  G01J3/42

    CPC classification number: G06T7/90 ,  B41J2/21 ,  G01J3/40 ,  H04N1/6008 ,  G01J2003/425

    Abstract: An image processing apparatus comprises: an image forming unit configured to form an image on a recording medium using a plurality of color materials on the basis of first image data showing an image; and an estimating unit configured to estimate a characteristic of each one of the plurality of color materials in a target region on the formed image on the basis of second image data obtained by reading the formed image. The estimating unit selects an estimation processing unit to use from among a plurality of estimation processing units used for different estimation methods on the basis of a combination of the color materials in the target region.

    DISTORTION MEASUREMENT AND CORRECTION FOR SPECTRALLY ENCODED ENDOSCOPY
    67.
    发明申请
    DISTORTION MEASUREMENT AND CORRECTION FOR SPECTRALLY ENCODED ENDOSCOPY 审中-公开

    公开(公告)号：US20190080439A1

    公开(公告)日：2019-03-14

    申请号：US16124545

    申请日：2018-09-07

    Applicant: CANON U.S.A., INC.

    Inventor： Tzu-Yu Wu ,  Bin Wu

    IPC: G06T5/00 ,  G01J3/28 ,  G01J3/40 ,  G06T5/50 ,  A61B1/00

    CPC classification number: G06T5/006 ,  A61B1/00009 ,  G01J3/2823 ,  G01J3/40 ,  G01J2003/283 ,  G06T5/50 ,  G06T2207/10068

    Abstract: Methods, apparatuses, systems, and storage mediums for correcting distortion of a spectrally encoded endoscopy (SEE) image are provided. A first reference pattern comprising a plurality of radial lines is scanned with an SEE spectral line to obtain a first image. Signs of a tangential shift and/or of a radial shift of the spectral line may be determined, and magnitudes of the tangential shift and of the radial shift may be computed. A second reference pattern comprising at least a circle with the SEE spectral line may be scanned to obtain a second image in a case where the radial shift is positive. The magnitude of the radial shift may be computed based on the magnitude of the tangential shift and a radius of the circle. The tangential shift and the radial shift may then be applied for correcting distortion.

    System and Method for Light Optimization
    68.
    发明申请
    System and Method for Light Optimization 审中-公开

    公开(公告)号：US20180106675A1

    公开(公告)日：2018-04-19

    申请号：US15573510

    申请日：2016-04-27

    Applicant: SHENZHEN UNIVERSITY

    Inventor： Qi YAO

    IPC: G01J3/40 ,  H05B33/08 ,  H05B37/02

    CPC classification number: G01J3/40 ,  G01M11/02 ,  H05B33/0869 ,  H05B33/0872 ,  H05B37/02

    Abstract: The present disclosure relates to a method and related system for spectrum optimization of an illumination light source. Spectrum optimization according to the present disclosure can be based on various optimization parameters, including but not limited to luminous efficacy, color rendering effect, luminous efficacy of radiation, mesopic efficacy of radiation, cirtopic efficacy of radiation, etc. The present method and system are capable of optimizing illumination performance of a light source in various aspects in an individual or integrated manner. Further, the present method and system are capable of accommodating different illumination purposes and conditions by combining and prioritizing different optimization parameters.

    COLOR MEASURING APPARATUS, IMAGE FORMING APPARATUS AND COLOR MEASURING METHOD
    69.
    发明申请
    COLOR MEASURING APPARATUS, IMAGE FORMING APPARATUS AND COLOR MEASURING METHOD 审中-公开
    颜色测量装置，图像形成装置和颜色测量方法

    公开(公告)号：US20160041034A1

    公开(公告)日：2016-02-11

    申请号：US14820548

    申请日：2015-08-06

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Tomoaki Nakai ,  Hitoshi Furukawa ,  Akihiko Uchiyama

    IPC: G01J3/40 ,  G01J3/46 ,  G01J3/28

    CPC classification number: G01J3/40 ,  G01J3/0205 ,  G01J3/0216 ,  G01J3/0256 ,  G01J3/2823 ,  G01J3/46 ,  G01J3/501 ,  G01J3/502 ,  H04N1/6044

    Abstract: A color measurement device includes a light source for illuminating an object with light; a dispersing portion for spectrally dispersing light emitted and reflected by the object; a light receptor for receiving the light dispersed by the dispersing portion; and a controller for effecting color measurement based on a result of light reception of the light receptor from the object which is an image formed on a recording material; wherein the emitted light has a first intensity of light in a first wavelength range and a second intensity lower than the first intensity in a second wavelength range, and wherein the controller deduces a value relating to color measurement for the second wavelength range on the basis of a result of light reception of the light receptor for the first wavelength range.

    Abstract translation: 颜色测量装置包括用光照射物体的光源; 用于对由物体发射和反射的光进行光谱分散的分散部分; 光接收器，用于接收由分散部分散射的光; 以及控制器，用于根据作为形成在记录材料上的图像的物体的光接收器的光接收结果进行颜色测量; 其中，所述发射光在第一波长范围内具有第一强度的光并且在第二波长范围内具有低于所述第一强度的第二强度，并且其中所述控制器基于所述第二波长范围推定与所述第二波长范围的颜色测量相关的值 第一波长范围的光接收体的光接收的结果。

    Method and system for characterizing color variation of a surface
    70.
    发明授权
    Method and system for characterizing color variation of a surface 有权
    表征表面颜色变化的方法和系统

    公开(公告)号：US09200999B2

    公开(公告)日：2015-12-01

    申请号：US14023539

    申请日：2013-09-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hua-Tzu Fan ,  Samuel Lute

    IPC: G01J3/46 ,  G01N21/25 ,  G01J3/40 ,  G01J3/50

    CPC classification number: G01N21/255 ,  G01J3/40 ,  G01J3/50 ,  G01J3/504 ,  G01J2003/467 ,  G01N21/474 ,  G01N21/55 ,  G01N21/8422

    Abstract: A system and method of characterizing a color variation of a surface includes a device having a light source and a plurality of sensors positioned at respective viewing angles. An algorithm is stored on and executable by a controller to cause the controller to direct a beam of light at the measurement location with the light source and measure the light leaving the measurement location with the sensors at a plurality of azimuth angles to obtain respective measured color values. The controller is configured to define a color vector function F(θ, φ) to represent the color variation of the surface. The controller is configured to determine the color vector function F(θ, φ) based at least partially on the respective measured color values. The system allows for a representation of color space of a surface at any azimuth and viewing angle.

    Abstract translation: 表征表面的颜色变化的系统和方法包括具有光源和位于相应视角的多个传感器的装置。 算法存储在控制器上并可由控制器执行，以使控制器用光源引导测量位置处的光束，并用传感器测量离开测量位置的光在多个方位角以获得相应的测量颜色 价值观。 控制器被配置为定义一个颜色矢量函数F（＆Thetas;＆phgr。）来表示表面的颜色变化。 控制器被配置为至少部分地基于相应的测量的颜色值来确定颜色向量函数F（＆amp; t;＆phgr;）。 该系统允许在任何方位和视角下表示表面的颜色空间。

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